Standard Arborist Plan Details

CITY OF ALPHARETTA, GEORGIA
LANDSCAPE STANDARDS INDEX
L-1
TREE PLANTING
(TYPICAL SECTION)
L-2
TREE ANCHORING - TYPE A
(FOR TREES LARGER THAN 2 INCHES CALIPER)
L-3
TREE ANCHORING - TYPE B
(FOR TREES UP TO 2 INCHES CALIPER)
L-4
TREE ANCHORING - TYPE C
(FOR CONTAINER GROWN TREES OR B&B TREES UP TO 2 INCHES CALIPER)
L-5
TREE PLANTING IN PARKING LOTS
(TYPICAL SECTION)
L-6
L-7
L-8
TREE PROTECTION / L.O.D. FENCING
SHRUB PLANTING BED
ROOT BARRIER DETAIL
(FOR PUBLIC SIDEWALKS OR CURBING)
L-9
L-10
TREE PROTECTION - WOOD SLATS
TREE WELL IN BRICK SIDEWALK
TREE GRADING CUE CARD
(PROVIDED BY ROOTS PLUS FIELD GROWERS ASSOCIATION OF FLORIDA)
COVER SHEET
08/01/2015
BY
REVISION
DATE
INDEX
CROWN
SET AND MAINTAIN IN A PLUMB
VERTICAL POSITION. PRUNE ALL DEAD,
DAMAGED OR CROSSING BRANCHES
AND ALL WATERSPOUTS AND SUCKERS.
DO NOT CUT CENTRAL LEADER OR
OTHER BRANCH TIPS.
WATER RING
USE ONLY IF TREES ARE TO BE HAND
WATERED WITH A HOSE. BUILD NO
HIGHER THAN 3" AND PLACE JUST
BEYOND ROOT BALL. DESTROY
AFTER ONE GROWING SEASON.
ORGANIC MULCH
2" TO 4" DEEP TO LIMITS OF CULTIVATED
AREA. KEEP 2" AWAY FROM TRUNK.
PLANTING HOLE
ROOT BALL
DIG ONLY DEEP ENOUGH TO
HAVE TOP OF ROOT BALL AT
GRADE OR 2" HIGHER IN
HEAVY OR POORLY DRAINED
REMOVE ALL STRAPPING. CUT
AND REMOVE AT LEAST TOP 2
RINGS OF WIRE BASKET. CUT
AND REMOVE AT LEAST TOP 12"
OF BURLAP. CUT ENCIRCLING
ROOTS (CONTAINER-GROWN
TREES).
SCARIFY IF NECESSARY. SET
ROOT BALL ON SOLID
GROUND.
TILLED SOIL
COMPACTED
SUBGRADE
PLANTING HOLE
3x THE DIAMETER OF THE ROOT BALL
TREE PLANTING
(TYPICAL SECTION)
08/01/2015
BY
REVISION
DATE
STD. L-1
STAKES
ATTACHMENT HEIGHT
2"x2" WOODEN STAKES OR
METAL ANCHORS. CUT STAKES
LONG ENOUGH FOR SECURE
GRIP IN SUBGRADE. ANGLE
ATTACH IN A BRANCH CROTCH
APPROXIMATELY 1/3 THE HEIGHT OF THE
MAIN STEM, OR AT FIRST AVAILABLE BRANCH
CROTCH ABOVE THAT POINT.
USE 3 STAKES PLACED EQUAL
STRAPS
STAKES MAY BE NECESSARY FOR
TREES GREATER THAN 4"
CALIPER.
WIDE, SOFT, FLEXIBLE MATERIAL
MANUFACTURED FOR THE
PURPOSE OF TREE ANCHORING
SUCH AS WOVEN
POLYPROPYLENE WEBBING OR
RUBBER STRIPS WITH GROMMETS
FOR WIRE ATTACHMENT. DO
NOT USE HOSE AND WIRE.
USE ANCHORING SYSTEMS ONLY WHERE WIND OR SOIL CONDITIONS MAKE IT
NECESSARY OR AS REQUIRED BY CITY ARBORIST. REMOVE AFTER ONE YEAR.
TREE ANCHORING - TYPE A
(FOR TREES LARGER THAN 2 INCHES CALIPER)
08/01/2015
BY
REVISION
DATE
STD. L-2
STRAPS
STAKES
WIDE, SOFT, FLEXIBLE MATERIAL
MANUFACTURED FOR THE
PURPOSE OF TREE ANCHORING.
TWO EXAMPLES SHOWN HERE
ARE A WOVEN POLYPROPYLENE
WEBBING AND A RUBBER STRIP
WITH GROMMETS FOR WIRE
ATTACHMENT.
2"x2"x5' WOODEN STAKES OR
5' LONG METAL FENCE POSTS.
PLACE PERPENDICULAR TO
PREVAILING SUMMER WINDS.
WEST WIND
ATTACHMENT HEIGHT
ATTACH AT APPROXIMATELY 1/3 THE
HEIGHT OF THE MAIN STEM.
USE ANCHORING SYSTEMS ONLY WHERE WIND OR SOIL
CONDITIONS MAKE IT NECESSARY. REMOVE AFTER ONE YEAR.
TREE ANCHORING - TYPE B
(FOR TREES UP TO 2 INCHES CALIPER OR FOR
TREES IN BEAUTY STRIPS, SIDEWALK CUTOUTS,
PLANTING PITS, ETC.)
NOTE: THIS DETAIL MAY BE UTILIZED FOR TREES
GREATER THAN 2 INCHES CALIPER WHICH ARE TO BE
PLANTED IN BEAUTY STRIPS, SIDEWALK CUTOUTS,
PLANTING PITS, AND SIMILAR LOCATIONS WHERE
THERE IS NO ROOM FOR STRAPPING AS PER STD. L-2.
08/01/2015
BY
REVISION
DATE
STD. L-3
CROSS STAKES
2"x2" UNTREATED WOOD. CUT
STAKES LONG ENOUGH TO
PROVIDE STABILITY.
ANCHOR STAKES
2"x2" UNTREATED WOOD. CUT
STAKES LONG ENOUGH FOR
SECURE GRIP IN SUBGRADE.
DRYWALL
SCREWS - 2-1/2"
ROOT BALL
USE ANCHORING SYSTEMS ONLY WHERE WIND OR SOIL
CONDITIONS MAKE IT NECESSARY. REMOVE AFTER ONE YEAR.
TREE ANCHORING - TYPE C
(FOR CONTAINER GROWN TREES OR
B&B TREES UP TO 2 INCHES CALIPER)
08/01/2015
BY
REVISION
DATE
STD. L-4
GROUND COVER
COVER ENTIRE PLANTER AREA
WITH 2-4" DEEP ORGANIC
MULCH. USE GROUNDCOVER
OR SHRUBS ONLY AS SHOWN
ON THE CITY OF ALPHARETTA
APPROVED LANDSCAPE PLAN
(FOR LAND DISTURBANCE
PERMIT).
BACKFILL
PLANTING HOLE
EXCAVATE AND BACKFILL ENTIRE PARKING LOT
ISLAND WITH A MINIMUM OF 3' DEEP FRIABLE
TOPSOIL OR CLEAN CULTIVATED SUBSOIL.
TAMP SOIL BENEATH
TREE FIRMLY TO
PREVENT SETTLING.
ROOT BARRIER
OPTIONAL. PREVENTS
ROOTS FROM
GROWING BETWEEN
PAVEMENT AND BASE
MATERIAL.
DRAINAGE SYSTEM
AS NEEDED. PERFORATED
DRAIN PIPE IN GRAVEL BED
CONNECTED TO STORM
DRAIN OR FRENCH DRAIN.
CURB & GUTTER
PAVEMENT BASE
SUBGRADE
8'-0" MINIMUM
BACK OF CURB TO BACK OF CURB
(TOTAL AREA SHALL BE A MINIMUM OF 200 SQ. FT.)
TREE PLANTING
IN PARKING LOTS
(TYPICAL SECTION)
08/01/2015
BY
REVISION
DATE
STD. L-5
FENCE LOCATION
2'-6"
4'-0"
AT LIMITS OF CRITICAL ROOT ZONE
(CRZ RADIUS = 1.3' PER 1" DBH)
OR AS SHOWN ON THE TREE PROTECTION PLAN
FENCE POSTS
FENCE MATERIAL
TYPE "A"
2"x2" WOOD OR
METAL STAKE
ORANGE LAMINATED
SAFETY NETTING
5' O.C.
SIGN
2'-6"
4'-0"
KEEP OUT
TREE PROTECTION AREA
PROHIBIDO
ZONA PROTECTORA PARA LOS ARBOLES
FENCE POSTS
FENCE MATERIAL
TYPE "B"
METAL STAKE OR
"U" POST
ORANGE LAMINATED
SAFETY NETTING WITH
WIRE BACKING ("HOG
WIRE" - 14 GAUGE, 2"x4"
MESH)
5' O.C.
SIGN
2'-6"
4'-0"
KEEP OUT
TREE PROTECTION AREA
PROHIBIDO
ZONA PROTECTORA PARA LOS ARBOLES
FENCE POSTS
FENCE MATERIAL
TYPE "C"
METAL STAKE OR
"U" POST
ORANGE LAMINATED
SAFETY NETTING
5' O.C.
31.2'
ACCESS POINT
ALL TREE PROTECTION/LOD FENCING MUST HAVE A MINIMUM OF
ONE ACCESS POINT EVERY 200' OF FENCING. ACCESS POINT
SHALL BE CONSTRUCTED AS BELOW.
NOTES:
1.
2.
3.
4.
5.
ALL TREE PROTECTION DEVICES ARE TO BE
INSTALLED PRIOR TO THE START OF LAND
DISTURBANCE AND MAINTAINED UNTIL FINAL
LANDSCAPING IS INSTALLED. NO PARKING,
STORAGE OR OTHER CONSTRUCTION SITE
ACTIVITIES ARE TO OCCUR WITHIN THE TREE
PROTECTION AREA.
PROVIDE 4" DEEP WOOD CHIP MULCH OVER
ANY UNPROTECTED ROOT ZONE.
MAKE CLEAN CUTS ON ROOTS EXPOSED BY
GRADING AND BACKFILL IMMEDIATELY.
INSTALLATION SHALL INVOLVE NO TRENCHING.
SIGNS TO BE PLACED AT 50' INTERVALS ALONG
5'
FENCE
ACCESS
POINT
3'
FENCE
CRZ
5'
24" DBH TREE
TREE PROTECTION / L.O.D.
FENCING
FENCING. SIGNS TO BE A MINIMUM OF 8 21" X
11". SIGNS TO READ:
KEEP OUT
TREE PROTECTION AREA
PROHIBIDO
ZONA PROTECTORA PARA LOS ARBOLES
08/01/2015
BY
REVISION
DATE
STD. L-6
EDGE OF PLANTING BED
FINAL GRADE
6
TYP.
STAGGERED
ROWS
UP TO MAX. 12" @
CENTER OF BED
1
EXISTING GRADE
EQUAL SPACING
BETWEEN ALL PLANTS
TYPICAL BED MOUNDING
TYPICAL PLANTING BED PLAN
SPACING VARIES
SEE LANDSCAPE PLAN
REMOVE ANY BROKEN,
DEAD OR DISEASED LIMBS
TYP. COLLAR
MIN. 2" HT.
6"
MIN.
10"
DEPTH
4"
MIN. 3" LAYER
OF APPROVED
MULCH
"V" TRENCH AROUND
ENTIRE PLANTING BED
PLANT MIX
EDGE OF
PLANTING BED
TAMP SOIL MIX UNDER
EACH PLANT BALL TO
MINIMIZE SETTLEMENT
CUT ROOTS AS NECESSARY IN
CONTAINERIZED PLANTS THAT
ARE POT BOUND
TYPICAL PLANTING BED DETAIL
NOTES:
1.
2.
3.
4.
OMIT COLLAR AROUND EACH SHRUB WHEN IRRIGATION SYSTEM IS PRESENT.
INSTALL TOP OF PLANT BALL 2"-3" ABOVE ADJACENT GRADE.
TAMP PLANTING MIX FIRMLY AS PIT IS FILLED AROUND EACH PLANT BALL.
SOAK EACH PLANT BALL AND PIT IMMEDIATELY AFTER INSTALLATION.
SHRUB PLANTING BED
08/01/2015
BY
REVISION
DATE
STD. L-7
MINIMUM
8'-0"
2" X 4" WOOD SLATS
BOTTOM AS NEAR TO
GROUND AS ROOTS ALLOW
SAND BAGS
NOTES:
1.
WHERE ANY EXCEPTIONS RESULT IN A FENCE BEING CLOSER THAN TEN FEET (10'-0") TO A TREE TRUNK;
PROTECT THE TRUNK WITH STRAPPED-ON-PLANKING TO A HEIGHT OF EIGHT FEET (8'-0"), OR TO THE LIMITS OF
LOWER BRANCHING, IN ADDITION TO THE REQUIRED ORANGE LAMINATE FENCING.
2. ANY ROOTS EXPOSED BY CONSTRUCTION ACTIVITY SHALL BE PRUNED FLUSH WITH THE SOIL. BACKFILL ROOT
AREAS WITH GOOD QUALITY TOP SOIL AS SOON AS POSSIBLE. IF EXPOSED ROOT AREAS ARE NOT
BACKFILLED WITHIN TWO (2) DAYS, COVER THEM WITH ORGANIC MATERIAL IN A MANNER WHICH REDUCES
SOIL TEMPERATURE, AND MINIMIZES WATER LOSS DUE TO EVAPORATION.
3. PRIOR TO EXCAVATION OR GRADE CUTTING WITHIN TREE CRZ, MAKE A CLEAN CUT BETWEEN THE
DISTURBED AND UNDISTURBED ROOT ZONES WITH A PRUNING SAW, DITCH WITCH OR SIMILAR EQUIPMENT,
TO MINIMIZE DAMAGE TO REMAINING ROOTS.
4. TREES MOST HEAVILY IMPACTED BY CONSTRUCTION ACTIVITIES SHALL BE WATERED DEEPLY ONCE A WEEK
DURING PERIODS OF HOT, DRY WEATHER.
5. SAND BAGS OR HAY BALES SHALL BE PLACED ON THE ROOT FLARES AND ANY EXPOSED STRUCTURAL ROOTS.
6. ALL EXPOSED, RIPPED, AND TORN ROOTS GREATER THAN ONE-HALF INCH (1/2") SHALL BE CLEAN CUT.
7. NO LANDSCAPE TOPSOIL DRESSING GREATER THE FOUR INCHES (4") SHALL BE PERMITTED WITHIN THE CRZ
OF A TREE. NO SOIL IS PERMITTED ON THE ROOT FLARE OF ANY TREE.
8. PRUNING TO PROVIDE CLEARANCE FOR STRUCTURES, VEHICULAR TRAFFIC AND EQUIPMENT SHALL TAKE
PLACE BEFORE CONSTRUCTION BEGINS.
TREE PROTECTION WOOD SLATS
08/01/2015
BY
REVISION
DATE
STD. L-9
NOTES:
1.
INSTALLATION OF "CU STRUCTURAL SOIL" (OR APPROVED EQUAL) AND BRICK PAVING MUST BE UNDERTAKEN BY AN
EXPERIENCED CONTRACTOR. THE CONTRACTOR MUST HAVE EXPERIENCE WORKING WITH THE SPECIFIED MATERIALS AND
BE ABLE TO SHOW PROOF OF THIS EXPERIENCE. SAMPLES OF ALL MATERIALS MUST BE SUBMITTED AND BE APPROVED BY
THE CITY. THIS WORK WILL BE SUPERVISED BY THE CITY OF ALPHARETTA.
2. IN AREAS NOT ADJACENT TO A TREE PLANTING AREA, THE "CU STRUCTURAL SOIL" (OR APPROVED EQUAL) EXTENDS TO THE
BACK OF CURB.
3. LOCATE ALL UTILITIES PRIOR TO DIGGING TREE PITS. DO NOT SPRAY PAINT NEW PAVERS AND CONCRETE INDICATED TO
REMAIN. IF AT ALL POSSIBLE WHEN LOCATING UTILITIES, NOTIFY ENGINEER OF ANY CONFLICTS WITH UTILITY LINES.
4. REFERENCE CITY OF ALPHARETTA LANDSCAPE DETAILS L1, L2, L3, L4 AND L8 FOR ADDITIONAL INFORMATION ON TREE
PLANTING, ANCHORING AND ROOT BARRIER.
INSTALL 18"
MECHANICAL
ROOT BARRIER
ADJACENT TO
CURB
INSTALL 12"
MECHANICAL
ROOT BARRIER
ADJACENT TO
BRICK PAVERS
(3 SIDES)
HEADER CURB
PAVEMENT
"CU STRUCTURAL
SOIL"
(OR APPROVED EQUAL)
PLANTING MIX
4' DEPTH
COMPACTED
SUBGRADE
MINIMUM 6' X 6' TREE PLANTING AREA
PERFORM DRAINAGE TEST AS DIRECTED
BY CITY OF ALPHARETTA ARBORIST
3' MINIMUM
ADJACENT TO
BRICK PAVERS
(3 SIDES)
TREE WELL IN
BRICK SIDEWALK
02/19/2016
BY
REVISION
DATE
STD.
L-10